Fig. 6From: Reconstruction of vertical alveolar ridge deficiencies utilizing a high-density polytetrafluoroethylene membrane /clinical impact of flap dehiscence on treatment outcomes: case series/Double layer wound closure. A Suturing of the periosteal layer at a lower lateral region. B Suturing of the periosteal layer with the addition of a subepithelial connective tissue graft for complete coverage of the membrane at an upper anterior region. C Suturing of the mucosal layer at a lower lateral region. D Suturing of the mucosal layer at a lower lateral regionBack to article page